Zocor 20mg tablets contain simvastatin, a prescription medication used to lower cholesterol and triglycerides in the blood. Each pack contains 28 tablets manufactured by MSD (Merck Sharp & Dohme). The tablets help reduce the risk of cardiovascular disease by decreasing the production of cholesterol in the body. This medication belongs to a class of drugs called HMG-CoA reductase inhibitors (statins). It works by reducing the amount of cholesterol made by the liver. The tablets should be taken once daily in the evening, with or without food, as directed by your healthcare provider. This is a prescription-only medication that requires regular monitoring by a healthcare professional. The product comes in a white box with teal accents and the MSD logo.